40+10 uF MFD ±5% 370/440 VAC Round Run Start Capacitor - Fits HVAC, Air Conditioners, Heat Pumps
SKU: 79310553152

40+10 uF MFD ±5% 370/440 VAC Round Run Start Capacitor - Fits HVAC, Air Conditioners, Heat Pumps

Sale price$21.80 Regular price$24.22
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Description

40+10 uF MFD ±5% 370/440 VAC Round Run Start Capacitor - Fits HVAC, Air Conditioners, Heat Pumps40+10 uf 40+10 MFD 370 440VAC 5% Volts Round Run Start Capacitor Key Features Dual capacitance rating: 40 microfarad (uF) for compressor, 10 uF for fan motor Dual voltage rating: 370 or 440 VAC Capacitance tolerance: 5% Operating frequency: 50 60 Hz Case: Round aluminum can with moisture and oil resistance Terminals: Three post design (C, FAN, HERM) with 1 4 inch male quick connects Operating temperature: 40C to 70C ( 40F to 158F) Safety protection:

40+10 uf 40+10 MFD 370-440VAC ±5% Volts Round Run Start Capacitor

Key Features

  • Dual capacitance rating: 40 microfarad (uF) for compressor, 10 uF for fan motor
  • Dual voltage rating: 370 or 440 VAC
  • Capacitance tolerance: ±5%
  • Operating frequency: 50/60 Hz
  • Case: Round aluminum can with moisture and oil resistance
  • Terminals: Three-post design (C, FAN, HERM) with 1/4 inch male quick-connects
  • Operating temperature: -40°C to 70°C (-40°F to 158°F)
  • Safety protection: 10,000 AFC (Ampere Fault Current) internal protector

Replaces / Cross-Reference Part Numbers

  • Replaces any dual round motor run capacitor with matching 40/10 uF and 370V or 440V specifications.
  • Check the label of your original capacitor for matching capacitance (e.g., 40/10, 40+10, 40+10 MFD) and voltage ratings.
  • Known to replace parts such as USA2232A and 40/10DVR.

Compatibility & Fitment

  • Designed for continuous duty in single-phase motor applications.
  • Common in residential and light commercial HVAC systems.
  • Suitable for use in:
    • Air conditioner condensing units
    • Heat pumps
    • Compressor motors
    • Condenser fan motors
    • Refrigeration systems

When to Replace

  • Compressor or fan motor fails to start or struggles to start.
  • A humming sound is audible, but the motor does not engage.
  • Capacitor casing is visibly swollen, bulging, cracked, or leaking fluid.
  • The unit starts but shuts down after a short period.
  • A capacitance test reading is outside the specified ±5% tolerance.

Installation Tips

  • Disconnect all electrical power to the main unit before beginning work.
  • Safely discharge the existing capacitor by shorting across the terminals with an insulated screwdriver (e.g., C to HERM, then C to FAN).
  • Verify the uF (MFD) and voltage ratings of the replacement capacitor match the component being replaced. The voltage rating can be equal to or higher, but never lower.
  • Document or photograph the wire connections to each terminal (C, FAN, HERM) before disconnecting.
  • Ensure the new capacitor is physically secured with the original mounting bracket.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 79310553152

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★★★★★ 5
Great replacement micro needling cartridges.
Picked today up for replacements for my Dr Pen micro needler. They arrived individually sealed, ready for use. They appear to be compatible good quality product just like my originals. Love the price point and savings. They fit my device perfectly. These arrived at the Dr Pen cartridge box although do not have Dr Pen brand on cartridges appear high-quality similar in packaging of the originals. They do not have the pen, cap safety guard, but that's really not a needed part of the product. Make sure to verify you have the right device. Be aware they do not fit correctly in M8 devices. Great value for the money you get 21 piece micro, needling cartridges, various needle styles. The kit comes with 36 needle, 12 needle and nano cartridges. I have already used the Nano cartridge and they are super comparable to original cartridges quality, They do not drag on the skin easily move and dispense face serum product. So far, I've been super happy with the replacements.
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Reviewed in the United States on May 29, 2026
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★★★★★ 5
21 Piece Pen Cartridges
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Reviewed in the United States on May 22, 2026
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★★★★★ 4
Wish I Knew if it is Surgical Grade Steel
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Reviewed in the United States on May 19, 2026
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The Rebecca Review
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★★★★★ 5
Perfect for Husbands but Wives may Enjoy Reading it Too!
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Reviewed in the United States on August 18, 2024
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Gloria Muniz
Cuba, US
★★★★★ 5
Good book
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